Bulletin of Friends' Historical Society of Philadelphia. Friends Historical Association.
Lua i Stíl Chicago (17ú heag.)Bulletin of Friends' Historical Society of Philadelphia. Friends Historical Association.
Lua MLA (9ú heag.)Bulletin of Friends' Historical Society of Philadelphia. Friends Historical Association.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.